Pinguecula A small, raised, white or yellow growth that appears on the conjunctiva. Pingueculas are caused by exposure to ultraviolet (UV) light and wind, and are usually harmless. Pterygium A noncancerous, fleshy growth that starts on the conjunctiva and can extend onto the cornea. Pterygia are also caused by exposure to UV light and wind, and are more common in adults in their 20s to 40s. Small pterygia may not require treatment, but larger ones may need surgery to remove them. growths #Eyes #